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Would you pay $299 annually if it meant never having to go to the supermarket? Amazon.com is testing a service with that idea in mind. And that’s on top of Amazon’s other services that already eliminate the need to go to the mall.

American consumers don’t just like buying in bulk—they like the shopping experience at one bulk-buying warehouse store a lot more compared to other retailers. Based on the results of a new survey, Costco has been named the …